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3881ee0b1e
The efivars intermediate variable access layer provides an abstraction that permits the EFI variable store to be replaced by something else that implements a compatible interface, and caches all variables in the variable store for fast access via the efivarfs pseudo-filesystem. The SSDT override feature does not take advantage of either feature, as it is only used when the generic EFI implementation of efivars is used, and it traverses all variables only once to find the ones it is interested in, and frees all data structures that the efivars layer keeps right after. So in this case, let's just call EFI's code directly, using the function pointers in struct efi. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.